WO2013078763A1 - High voltage frequency conversion power supply device - Google Patents
High voltage frequency conversion power supply device Download PDFInfo
- Publication number
- WO2013078763A1 WO2013078763A1 PCT/CN2012/000734 CN2012000734W WO2013078763A1 WO 2013078763 A1 WO2013078763 A1 WO 2013078763A1 CN 2012000734 W CN2012000734 W CN 2012000734W WO 2013078763 A1 WO2013078763 A1 WO 2013078763A1
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- WO
- WIPO (PCT)
- Prior art keywords
- high voltage
- power supply
- supply device
- cable
- frequency conversion
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
Definitions
- the invention relates to a frequency converter, in particular to a high voltage variable frequency power supply device.
- the shore power frequency conversion power supply devices in the prior art are all low voltage variable frequency power supply devices, and the defects are that the power supply power is high; the power factor is low; the frequency stability is low; the output cable length is strictly limited, and the current is large.
- the rate is high, the harmonic coefficient is large and the output waveform is poor, which has a certain impact on the safe use of marine equipment.
- the technical problem to be solved by the present invention is to provide a high-voltage variable-frequency power supply device with more reasonable structure, good stability, convenient use and control, aiming at the deficiencies of the prior art.
- the invention relates to a high voltage variable frequency power supply device, which is characterized in that: it comprises a high voltage incoming line rejection transformer, the high voltage cable is connected to the high voltage incoming line and is connected to the transformer, and the high voltage incoming line is rejected with a plurality of stages of current limiting.
- Resistor the transformer is connected to the frequency converter through a high voltage cable, the frequency converter is composed of several PWM power units through series and parallel, the frequency converter is connected with a sinusoidal filter through a high voltage cable, and the sinus filter is passed through a high voltage cable. It is rejected from the high-voltage outlet; it also has a PLC programmable controller, and the PLC programmable controller is connected to the inverter through a signal line.
- the technical problem to be solved by the present invention can be further achieved by the following technical solutions.
- the high-voltage variable frequency power supply device described above is characterized in that: it is further provided with a photoelectric conversion module, and the photoelectric conversion module is connected with a PLC programmable controller, and transmits signals through a multimode optical cable.
- the high-voltage busbar of the power station feeds three-phase high voltage to the invention, and the transformer is stepped down to the inverter, and the single-phase output is crossed and crossed by the PWM inverter to realize the high-voltage direct output of the variable voltage frequency conversion, and the high-voltage output is filtered.
- the output voltage is a low harmonic Quasi-sine wave, output through the output unit, the integrated factor of the input of the frequency conversion unit can reach 0.95 or more.
- the input, output current, voltage, waveform, etc. are sampled and sent to the PLC for analysis and control control, thereby realizing the whole variable frequency power supply device.
- Multi-ring closed-loop feedback control The data acquisition and operation management communication with analog PLC is adopted, the control is more accurate and convenient, and the external human-machine interface monitors the data and controls the device, which makes the operation more convenient.
- the photoelectric conversion module can be used to connect with the Internet or other adjacent or upper devices through the multimode optical cable, so that other devices can be remotely controlled and monitored with the device.
- FIG. 1 is a schematic block diagram of a structural principle of the present invention.
- a high voltage variable frequency power supply device includes a high voltage incoming line rejection and a transformer
- the high voltage cable is connected to the high voltage incoming line and connected to the transformer.
- the high voltage incoming line is rejected with a plurality of current limiting resistors, and the transformer is connected to the frequency converter through a high voltage cable, and the frequency converter is composed of several
- the PWM power unit is composed of series and parallel, the inverter is connected with the sinusoidal filter through the high voltage cable, and the sinus filter is rejected by the high voltage cable and the high voltage outlet; it also has a PLC programmable controller, and the PLC can be
- the programming controller is connected to the frequency converter via a signal line.
- Embodiment 2 The high voltage variable frequency power supply device according to Embodiment 1 is further provided with a photoelectric conversion module, wherein the photoelectric conversion module is connected with a PLC programmable controller, and transmits signals through a multimode optical cable.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Optical Communication System (AREA)
- Inverter Devices (AREA)
Abstract
A high voltage frequency conversion power supply device comprises a high voltage incoming cabinet and a transformer. A high voltage cable enters the high voltage incoming cabinet, and leaves same and enters the transformer. The high voltage incoming cabinet is provided with several stages of current limiting resistors. The transformer is connected to an inverter by the high voltage cable. The inverter is formed by several PWM power units connected in series or in parallel. The inverter is connected to a sinusoidal filter by the high voltage cable. The sinusoidal filter is connected to a high voltage outgoing cabinet by the high voltage cable. The high voltage frequency conversion power supply device is further provided with a PLC programmable controller. The PLC programmable controller is connected to the inverter by a signal line. The high voltage frequency conversion power supply device is of a more reasonable structure, stable, and convenient for use and control, and can effectively realize high voltage frequency conversion output.
Description
高压变频电源装置 技术领域 High-voltage variable frequency power supply device
本发明涉及一种变频器， 特别是一种高压变频电源装置。 The invention relates to a frequency converter, in particular to a high voltage variable frequency power supply device.
背景技术 Background technique
现有技术中的岸电变频电源装置均为低压变频电源装置， 其缺陷在于对 供电电源要求较高； 功率因素较低； 频率稳度精度低； 对输出电缆长度有严 格的限制， 电流大故障率较高， 谐波系数大输出波形差， 对船用设备安全使 用有一定的影响。 The shore power frequency conversion power supply devices in the prior art are all low voltage variable frequency power supply devices, and the defects are that the power supply power is high; the power factor is low; the frequency stability is low; the output cable length is strictly limited, and the current is large. The rate is high, the harmonic coefficient is large and the output waveform is poor, which has a certain impact on the safe use of marine equipment.
发明内容 Summary of the invention
本发明所要解决的技术问题是针对现有技术的不足， 提供一种结构更为 合理、 稳定性好、 使用及控制方便的高压变频电源装置。 The technical problem to be solved by the present invention is to provide a high-voltage variable-frequency power supply device with more reasonable structure, good stability, convenient use and control, aiming at the deficiencies of the prior art.
本发明所要解决的技术问题是通过以下的技术方案来实现的。 本发明是 一种高压变频电源装置， 其特点是： 它包括高压进线拒和变压器， 高压电缆 接入高压进线拒并接出至变压器， 所述的高压进线拒设有若干级限流电阻， 所述的变压器通过高压电缆与变频器连接，所述的变频器由若干个 PWM功率 单元通过串联及并联的方式组成， 变频器通过高压电缆与正弦滤波器连接， 正弦滤波器通过高压电缆与高压出线拒连接； 它还设有 PLC可编程控制器， 所述的 PLC可编程控制器通过信号线与变频器连接。 The technical problem to be solved by the present invention is achieved by the following technical solutions. The invention relates to a high voltage variable frequency power supply device, which is characterized in that: it comprises a high voltage incoming line rejection transformer, the high voltage cable is connected to the high voltage incoming line and is connected to the transformer, and the high voltage incoming line is rejected with a plurality of stages of current limiting. Resistor, the transformer is connected to the frequency converter through a high voltage cable, the frequency converter is composed of several PWM power units through series and parallel, the frequency converter is connected with a sinusoidal filter through a high voltage cable, and the sinus filter is passed through a high voltage cable. It is rejected from the high-voltage outlet; it also has a PLC programmable controller, and the PLC programmable controller is connected to the inverter through a signal line.
本发明所要解决的技术问题还可以通过以下的技术方案来进一步实现。 以上所述的高压变频电源装置， 其特点是： 它还设有光电转换模块， 所述的 光电转换模块与 PLC可编程控制器连接， 并通过多模光缆传输信号。 The technical problem to be solved by the present invention can be further achieved by the following technical solutions. The high-voltage variable frequency power supply device described above is characterized in that: it is further provided with a photoelectric conversion module, and the photoelectric conversion module is connected with a PLC programmable controller, and transmits signals through a multimode optical cable.
本发明使用时， 电站高压母线馈电三相高压至本发明， 经变压器降压后 给变频器， 单相输出经交直交 PWM逆变， 实现变压变频的高压直接输出， 高 压输出后由滤波器通过对波形的整形处理， 输出电压为低谐波的符合用电标
准的正弦波， 经输出单元输出， 变频单元输入的综合因数可达到 0.95以上， 同时通过对输入， 输出电流， 电压， 波形等的采样， 并送至 PLC分析处理控 制， 从而实现整个变频电源装置的多环闭环反馈控制。 采用带模拟量 PLC进 行数据采集以及运算管理通讯， 控制更加准确方便， 外接人机界面对数据进 行监控和对设备进行控制， 使操作更加简便。 When the invention is used, the high-voltage busbar of the power station feeds three-phase high voltage to the invention, and the transformer is stepped down to the inverter, and the single-phase output is crossed and crossed by the PWM inverter to realize the high-voltage direct output of the variable voltage frequency conversion, and the high-voltage output is filtered. Through the shaping of the waveform, the output voltage is a low harmonic Quasi-sine wave, output through the output unit, the integrated factor of the input of the frequency conversion unit can reach 0.95 or more. At the same time, the input, output current, voltage, waveform, etc. are sampled and sent to the PLC for analysis and control control, thereby realizing the whole variable frequency power supply device. Multi-ring closed-loop feedback control. The data acquisition and operation management communication with analog PLC is adopted, the control is more accurate and convenient, and the external human-machine interface monitors the data and controls the device, which makes the operation more convenient.
本发明高压变频电源的主要技术指标见下表： The main technical indicators of the high voltage variable frequency power supply of the invention are shown in the following table:
附图说明 DRAWINGS
图 1为本发明的一种结构原理示意框图。 1 is a schematic block diagram of a structural principle of the present invention.
具体实施方式 detailed description
以下参照附图， 进一步描述本发明的具体技术方案， 以便于本领域的技 术人员进一步地理解本发明， 而不构成对其权利的限制。 The specific technical solutions of the present invention are further described below with reference to the accompanying drawings, so that the present invention may be further understood by those skilled in the art.
实施例 1 , 参照图 1 , 一种高压变频电源装置， 它包括高压进线拒和变压
器， 高压电缆接入高压进线拒并接出至变压器， 所述的高压进线拒设有若干 级限流电阻， 所述的变压器通过高压电缆与变频器连接， 所述的变频器由若 干个 PWM功率单元通过串联及并联的方式组成，变频器通过高压电缆与正弦 滤波器连接， 正弦滤波器通过高压电缆与高压出线拒连接； 它还设有 PLC可 编程控制器， 所述的 PLC可编程控制器通过信号线与变频器连接。 Embodiment 1 Referring to FIG. 1, a high voltage variable frequency power supply device includes a high voltage incoming line rejection and a transformer The high voltage cable is connected to the high voltage incoming line and connected to the transformer. The high voltage incoming line is rejected with a plurality of current limiting resistors, and the transformer is connected to the frequency converter through a high voltage cable, and the frequency converter is composed of several The PWM power unit is composed of series and parallel, the inverter is connected with the sinusoidal filter through the high voltage cable, and the sinus filter is rejected by the high voltage cable and the high voltage outlet; it also has a PLC programmable controller, and the PLC can be The programming controller is connected to the frequency converter via a signal line.
实施例 2,实施例 1所述的高压变频电源装置中：它还设有光电转换模块， 所述的光电转换模块与 PLC可编程控制器连接， 并通过多模光缆传输信号。
Embodiment 2: The high voltage variable frequency power supply device according to Embodiment 1 is further provided with a photoelectric conversion module, wherein the photoelectric conversion module is connected with a PLC programmable controller, and transmits signals through a multimode optical cable.
Claims
权 利 要 求 书 、 一种高压变频电源装置， 其特征在于： 它包括高压进线拒和变压器， 高 压电缆接入高压进线拒并接出至变压器， 所述的高压进线拒设有若干级 限流电阻， 所述的变压器通过高压电缆与变频器连接， 所述的变频器由 若干个 PWM功 单元通过串联及并联的方式组成， 变频器通过高压电 缆与正弦滤波器连接， 正弦滤波器通过高压电缆与高压出线拒连接； 它 还设有 PLC可编程控制器， 所述的 PLC可编程控制器通过信号线与变 频器连接。 The invention relates to a high voltage variable frequency power supply device, which is characterized in that: it comprises a high voltage incoming line rejection transformer, the high voltage cable is connected to the high voltage incoming line and is connected to the transformer, and the high voltage incoming line is rejected with a plurality of limits. The current resistance is connected to the frequency converter through a high voltage cable, and the frequency converter is composed of a plurality of PWM power units connected in series and in parallel. The frequency converter is connected to the sine filter through a high voltage cable, and the sine filter passes the high voltage. The cable is disconnected from the high voltage outlet; it also has a PLC programmable controller, and the PLC programmable controller is connected to the inverter through a signal line.
、 根据权利要求 1所述的高压变频电源装置， 其特征在于： 它还设有光电 转换模块，所述的光电转换模块与 PLC可编程控制器连接，并通过多模 光缆传输信号。
The high voltage variable frequency power supply device according to claim 1, further comprising: a photoelectric conversion module, wherein the photoelectric conversion module is connected to the PLC programmable controller and transmits the signal through the multimode optical cable.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103893832A CN102497112A (en) | 2011-11-30 | 2011-11-30 | High voltage frequency conversion power supply device |
| CN201110389383.2 | 2011-11-30 |
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| Publication Number | Publication Date |
|---|---|
| WO2013078763A1 true WO2013078763A1 (en) | 2013-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/000734 WO2013078763A1 (en) | 2011-11-30 | 2012-05-28 | High voltage frequency conversion power supply device |
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| CN (1) | CN102497112A (en) |
| WO (1) | WO2013078763A1 (en) |
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| CN107134781A (en) * | 2016-02-29 | 2017-09-05 | 上海港蓝环保科技有限公司 | A kind of high pressure constant frequency pressure regulating regulated power supply system |
| CN107134782A (en) * | 2016-02-29 | 2017-09-05 | 上海港蓝环保科技有限公司 | A kind of high pressure constant frequency pressure regulating regulated power supply system provided with intelligence control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386962C (en) * | 2003-09-28 | 2008-05-07 | 北京利德华福电气技术有限公司 | Second generation high-voltage large-power frequency converter |
| CN201369491Y (en) * | 2009-01-21 | 2009-12-23 | 安徽长风电缆集团有限公司 | General-purpose buffer type high-voltage switch cabinet for high-voltage frequency converter |
| CN102497110A (en) * | 2011-12-06 | 2012-06-13 | 连云港星火岸电工程有限公司 | Wharf marine shore power system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039046Y (en) * | 2007-05-17 | 2008-03-19 | 北京合康亿盛科技有限公司 | High-voltage frequency conversion start cabinet |
| CN202364129U (en) * | 2011-11-30 | 2012-08-01 | 连云港星火岸电工程有限公司 | High-voltage variable-frequency power supply device |
-
2011
- 2011-11-30 CN CN2011103893832A patent/CN102497112A/en active Pending
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- 2012-05-28 WO PCT/CN2012/000734 patent/WO2013078763A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386962C (en) * | 2003-09-28 | 2008-05-07 | 北京利德华福电气技术有限公司 | Second generation high-voltage large-power frequency converter |
| CN201369491Y (en) * | 2009-01-21 | 2009-12-23 | 安徽长风电缆集团有限公司 | General-purpose buffer type high-voltage switch cabinet for high-voltage frequency converter |
| CN102497110A (en) * | 2011-12-06 | 2012-06-13 | 连云港星火岸电工程有限公司 | Wharf marine shore power system |
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| CN102497112A (en) | 2012-06-13 |
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